Note to readers: It was barely supported and never updated on Apple products only, at Apple's discretion. If they supported it properly like they were "supposed to", it wouldn't be barely supported and never updated :)

[0] "Supposed to" is my opinion on OpenGL. At the time it was the only cross-platform graphics API, and with Valve pushing a DirectX to OpenGL converter and building all their games with OpenGL support, we were finally going to get to a standard interface to graphics hardware. I guess that ship has sailed now. At least there will be abstractions that compile to the various platforms.